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				<h1 id="topic_header_text">Serie reference lines</h1>
				
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<p></p>
<p class="rvps2"><span class="rvts6">A reference line is a line drawn at a particular value of a graphic serie. A single serie can have multiple reference lines and reference lines can be used as a complement of the </span><a class="rvts13" href="Seriecustomgrid.html">serie custom grid</a><span class="rvts6">.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Reference lines are usually horizontal except in the case of </span><a class="rvts13" href="Abscisseproperties.html">abscisse</a><span class="rvts6"> reference line where they are vertical.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">The 'Reference lines' tab of the 'Graphic serie detailed properties' window permits to set up those reference lines.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Config_34.png"></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">The 'Reference lines' tab is composed by a tool bar, containing reference lines control commands, and by grid showing properties of reference lines created by the user.</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<h3 class="rvps10"><span class="rvts0"><span class="rvts16">Tool bar</span></span></h3>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Add_Item_16.png"><span class="rvts6"> </span><span class="rvts14">Add</span><span class="rvts6">: Create a new reference line</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Del_Items_16.png"><span class="rvts6"> </span><span class="rvts14">Delete</span><span class="rvts6">: Delete reference lines selected</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Clear_Items_16.png"><span class="rvts6"> </span><span class="rvts14">Clear</span><span class="rvts6">: Delete all reference lines</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Serie_Move_Up_16.png"><span class="rvts6"> </span><span class="rvts14">Move up</span><span class="rvts6">: Move a reference line up in the list</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Serie_Move_Down_16.png"><span class="rvts6"> </span><span class="rvts14">Move down</span><span class="rvts6">: Move a reference line down in the list</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Copy_16.png"><span class="rvts6"> </span><span class="rvts14">Copy</span><span class="rvts6">: Copy a reference line</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Past_16.png"><span class="rvts6"> </span><span class="rvts14">Past</span><span class="rvts6">: Past a reference line in the list</span></p>
<h3 class="rvps10"><span class="rvts0"><span class="rvts16">Reference lines grid</span></span></h3>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps5"><span class="rvts6">The reference lines grid has different columns for the different properties of a reference line.</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><img alt="" style="padding : 1px;" src="lib/Graph_Config_35.png"></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Ref mode: Reference mode of the reference line</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Value: Value of the reference line in 'Custom' mode</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Visible: Reference line visibility flag. Check that box to make the reference line visible</span></li>
</ul></ul>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Style: Select reference line style. Check '</span><a class="rvts13" href="Linestyles.html">Line styles'</a><span class="rvts6"> section for details.</span></li>
</ul></ul>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps5"><span class="rvts6">Color: Double click the colored cell to open the color selection dialog and select reference line color.</span></li>
</ul></ul>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Width: Set the width of the reference line.</span></li>
</ul></ul>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Val visible: Reference line value visibility flag. Check that box to make the reference line value visible</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Font: Double click the 'Font' cell to open the font selection dialog, select a font and set its size and attributes and click 'OK'</span></li>
</ul></ul>
<p class="rvps9"><span class="rvts6"><br/></span></p>
<h4 class="rvps11"><span class="rvts0"><span class="rvts17">Reference mode</span></span></h4>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<p class="rvps5"><span class="rvts6">Value of a reference line may be defined by different methods.</span></p>
<p class="rvps5"><span class="rvts6"><br/></span></p>
<ul style="text-indent: 0px; margin-left: 24px; list-style-position: outside; list-style-type: disc;"><ul style="text-indent: 0px; margin-left: 48px; list-style-position: outside; list-style-type: circle;">
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">None: No reference line (equivalent to uncheck the 'Visible' box)</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Zero: Reference line is drawn at the zero value of the graphic serie</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Min: Reference line is drawn at the minimum value of the graphic serie</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Max: Reference line is drawn at the maximum value of the graphic serie</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Average: Reference line is drawn at the zero average of the graphic serie</span></li>
<li style="margin-left: 0px" class="rvps9"><span class="rvts6">Custom: Reference line is drawn at the value defined by the user in the 'Value' cell</span></li>
</ul></ul>
<p class="rvps9"><span class="rvts6"><br/></span></p>
<p class="rvps2"><span class="rvts6">Example of a graphic using reference lines:</span></p>
<p class="rvps2"><span class="rvts6"><br/></span></p>
<p class="rvps2"><img alt="" style="padding : 1px;" src="lib/Graph_Config_36.png"></p>
<p class="rvps2" style="page-break-before: always;"><span class="rvts6"><br/></span></p>
<p></p>
<p class="rvps4"><span class="rvts11">Created with the Personal Edition of HelpNDoc: </span><a class="rvts12" href="http://www.helpndoc.com/feature-tour">Easily create Web Help sites</a></p>
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